Size 9M is 7" long
. Full waist is Length is overall side length;Onesie Length:16" wide
Size 12M is 7" long
. Full waist is Length is overall side length;Onesie Length:17" wide
Size 18M is 7" long
. Full waist is Length is overall side length;Onesie Length:18" wide
Size 24M is 7 1/2" long
. Full waist is Length is overall side length;Onesie Length:19.5" wide
Size 2 is 7 1/2" long
. Full waist is Length is overall side length;Onesie Length:20.5" wide
Size 3 is 8" long
. Full waist is Length is overall side length;Onesie Length:21" wide